Home / 30,333,977.40-45,500,966.10-20,130,310.20

Finding the Fourth Proportional to 30,333,977.40, 45,500,966.10 and 20,130,310.20

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Solution

The fourth proportional to 30,333,977.40, 45,500,966.10 and 20,130,310.20 is: 30,195,465.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,333,977.40 : 45,500,966.10 = 20,130,310.20 : x
  2. Step 2: Convert to fraction form
    30,333,977.40/45,500,966.10 = 20,130,310.20/x
  3. Step 3: Cross multiply
    30,333,977.40x = 45,500,966.10 × 20,130,310.20
  4. Step 4: Simplify right side
    30,333,977.40x = 915,948,561,992,684.25
  5. Step 5: Solve for x
    x = 915,948,561,992,684.25/30,333,977.40
  6. Step 6: Final answer
    x = 30,195,465.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.